package com.tfswx.jcyw.ruleenginedesigner.intercepter;

import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.cache.CacheKey;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.type.TypeHandlerRegistry;
import org.springframework.stereotype.Component;

import java.text.DateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Properties;

/**
 * @author Ricky
 * @date 2021/1/28
 */
@Slf4j
@Component
@Intercepts(
        {
                @Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}),
                @Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}),
                @Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class}),
        }
)
public class LogInterceptor implements Interceptor {


    private static String getParameterValue(Object obj) {
        String value;
        if (obj instanceof String) {
            value = "'" + obj.toString() + "'";
            value = value.replaceAll("\\\\", "\\\\\\\\");
            value = value.replaceAll("\\$", "\\\\\\$");
        } else if (obj instanceof Date) {
            DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.CHINA);
            value = "'" + formatter.format(obj) + "'";
        } else {
            if (obj != null) {
                value = obj.toString();
            } else {
                value = "null";
            }

        }
        return value;
    }

    public static String getSql(Configuration configuration, BoundSql boundSql) {
        Object parameterObject = boundSql.getParameterObject();
        List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
        String sql = boundSql.getSql().replaceAll("[\\s]+", " ");
        if (parameterMappings.size() > 0 && parameterObject != null) {
            TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
            if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
                sql = sql.replaceFirst("\\?", getParameterValue(parameterObject));

            } else {
                MetaObject metaObject = configuration.newMetaObject(parameterObject);
                for (ParameterMapping parameterMapping : parameterMappings) {
                    String propertyName = parameterMapping.getProperty();
                    if (metaObject.hasGetter(propertyName)) {
                        Object obj = metaObject.getValue(propertyName);
                        sql = sql.replaceFirst("\\?", getParameterValue(obj));
                    } else if (boundSql.hasAdditionalParameter(propertyName)) {
                        Object obj = boundSql.getAdditionalParameter(propertyName);
                        sql = sql.replaceFirst("\\?", getParameterValue(obj));
                    }
                }
            }
        }
        return sql;
    }

    /**
     * 打印sql
     *
     * @param configuration configuration
     * @param boundSql      boundSql
     * @param sqlId         sqlId
     * @param time          time
     */
    public void printSql(Configuration configuration, BoundSql boundSql, String sqlId, long time) {
        String sql = getSql(configuration, boundSql);
        String str = "\r\n【Id】\t" +
                sqlId +
                "\r\n【SQL】\t" + sql + "\r\n【耗时】\t" +
                time;
        log.info(str);
    }

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        long start = System.currentTimeMillis();
        Object[] args = invocation.getArgs();
        MappedStatement mappedStatement = null;
        String sqlId = null;
        if (args != null && args.length > 0) {
            mappedStatement = (MappedStatement) args[0];
            sqlId = mappedStatement.getId();
        }
        Object proceed = null;
        try {
            proceed = invocation.proceed();
            return proceed;
        } catch (Exception e) {
            log.error("SQL【{}】执行失败：{}", sqlId, e.getCause().getMessage());
            throw e;
        } finally {
            Object parameter = null;
            if (args != null && args.length > 1) {
                parameter = args[1];
            }
            if (mappedStatement != null && sqlId != null) {
                BoundSql boundSql = mappedStatement.getBoundSql(parameter);
                Configuration configuration = mappedStatement.getConfiguration();
                long time = (System.currentTimeMillis() - start);
                printSql(configuration, boundSql, sqlId, time);
            }
            if (proceed instanceof List) {
                System.out.println("查询结果：" + ((List) proceed).size());
            }
        }
    }

    @Override
    public Object plugin(Object target) {
        return Plugin.wrap(target, this);
    }

    @Override
    public void setProperties(Properties properties0) {
    }

}
